Type-writing machine.



PATENTED OCT. 2, 1906.

m. N I H wn vM N W I ..m|. LI .D W E P Y m APPLICATION FILED 1330.2, 1904. RENEWED MAE. a, 1906. 2 SHEETS-SHEET 1 PA'LYENTEVD 001". 2, 1906.

T. L. DENNIS. TYPE WRITING MACHINE. APPLICATION FILED DEC. 2, 1904. RENEWED MAB. a, 1900.

2 SHEETS-SHEET 2.

UNITE STATE$ PATENT FFICE.

OF NEW YORK, N. Y.

TYPE -wmrme MACHINE.

Specification of Letters Patent.

Patented Oct. 2, 1906.

Application filed December 2, 1904i Renewed March 3, 1906. Serial No. 304,066.

To all whom it may concern.-

Be it known that I, THOMAS L. DENNIS, a citizen of the United States, and a resident of the borough of- Manhattan, in the city, county, and State of New York, have inyented certain new and useful Improvements in Typeriting Machines, of which the following is a specification.

My invention, while relating to type-writing machines as entireties, has reference more particularly to the mechanism of such machines by which the rotation of the cylinder that supports the paper or other material during the type-writing operation and the spacing of the distance between the successive lines in the printing or type-writing operation is effected, the object of the invention being to character whic while simple in construction and efficient in operation shall at the same time effect the printin of the successive lines at a greater or lesser distance apart, as may be desired.

To these ends the invention consists, first, in the mechanism by which the intermittent rotation of the cylinder upon which the pa per or other material employed to receive the impressions in the type-writing operation is accomplished, to properly dispose in successive lines the type-written impressions upon the sheet or sheets of the latter; second, in the mechanism by which the distance between the successive lines of. impressions made in the type-writing operation may be varied and controlled, and, third, in various other constructions and combinations of parts, all as will hereinafter more fully appear Referring to the accompanying drawings, which form a part of this s ecification, Flgure 1 is a plan of the cylini er by which the paper or other material employed to receive the type-written impressions is supported with the rest for the paper or other material in bein supplied to the oylinder,th,e mechanism fbr rotating the cylinder and controlling the distance between the successive lines, and the carriage in and upon which these parts are mounted and supported, certain of the parts being broken away and others shown in section; Fig. 2, a front elevation of these parts with certain of such parts broken away; Fig. 3, a vertical transverse section of such parts, taken in the plane a :0 of

ig. 1 Figs. 4 and 5 similar sections taken in rovide a mechanism of this the same plane as Fig. 3, but showing certain of the parts in slightly-different relationships in the two figures.

In all the figures like letters of reference are employed to designate corresponding parts.

A indicates the carriage by means of which the paper or other material that is to receive the type-written impressions is fed to the action of the successive ty es and the impressions made upon it by t ieir action disposed in parallel lines transversely of. the sheet. This carriage may be constructed in any ordinary or preferred form and may be adapted for use in connection with any of the ordinary or well -r known forms of type-writing machines. As shown in the drawings, however, it is constructed with a suitable base which is composed of two arallelly-disposedbars a, that are connecte and tied together at their ends or at other suitablevpoints by bars 0,, extending between them, with two u wardlyprojecting stands a secured to t e u per side of the base near the ends thereof. ithin the stands a as thus disposed on the carriage A, is j ournaled a shaft 6, upon which ports and carries the paper or other mate- This shaft-is or may be provided on one or both of its ends with a knob or knobs b, by which the rotation of the cylinder B in one or the other directions may be effected by the hand of the operator when desired. As this equipped this shaft 1) is also provided at or near one of its ends with ratchetwheel V, which is fixedly secured th reto in close relationship to one of the stands a and is engaged by a hook-shaped pawl c, by means of which an intermittent rotary movement may be imparted to the cylinder B to properly space the distance between the successive liners of'typesvritten matter upon the roper position after the completion of each line to commence a new one. To permit of the accomplishment of this result, the pawllc is pivoted to the upper end of a swinging arm 0, which in. turn is pivoted at its lower end to the stand (L2 and is swung in the proper or collar 0, which is loosely mounted upon is fixedly secured the cylinder B, which suppaper or other material as the carriage A in. the type-writing operation is returned to the rial that is to receive the type-written im-,/ pressions during the type-writing operation.

direction to rotate the cylinder B from a sleeve bell-crank lever w the shaft 7), whereby to be capable of a sliding movement back-and forth therecnje'ind is provided on its inner end with an outwardlyextending circumferential flanges". 1 With the parts disposed as thus explained. the sleeve or. collar is connected with the swinging which contacts at one of I its ends with the face of the sleeve 01'' collar 0 through the intervention ofa friction-roll 0 with which the end is provided-and connects at its other end with the armC by a ball-and-soc-ket joint 0 and is pivoted at its angular portion upon the bracket 0 secured te -and projecting horizontally outward from the stand a The connection of the sleeve or collar 0' with the swinging arm G being, thus efiected, the swinging of the latter in one direction tor-rotate the cylinder B is accorn p-lished by sliding the sleeve or collar 0 on the shaft 7) toward the ratchet-wheel 6 while the swinging of this arm in the opposite directionis effected by means of a spiral spring 0 which is connected at one of its ends with a,- 3 pin c on the pawl 0, whereby to not only effeet the swinging movement of the arm in a backward direction, but also to normally hold the pawl cin contact with the teeth of' the ratchet, as shown To effect the sliding movement of the sleeve or collar 0 toward the ratchet-wheel b varie bus means may be adopted. I prefer, however, to employ for the purpose the button or finger-piece D, which is disposed outside of the outer end of one of the knbbs l) and is connected with the sleeve or collar 0 through theintcrvention of two rods (1, which fixedly secured at their outer ends to the button or finger-piece D andjiitted to slide in suitable orifices formed longitudinally through the 'kncb b on opposite sides of its axis are. loosely vengaged at theirinner ends with the flange c? -on the sleeve or collar 0. By this arrangement, as will be'seen, the rotation of. the button orfingenpiece D with the iods'd and the-cylinder B may be permitted without interfering with the operative connection of :these rods with the sleeve or collar o The cylinder B having beennrotated in either direction is frictionally retained inthe osit'ionto which it may have'been rotated Eye detent E; which, formed in, the shape of a ciirved lever and pivoted atitslower endto one of the stands a ,-is constructed onits inher side, adjacent to the ratchet wheel 5 with a circular enlargement or projection e, which is normally held pressed inward in engag-ement with the teeth of the ratchet-wheel ray-the spiral spring a, which, connected at one of its ends with the stud on the pawl c, is

attached at its other to a pin e on the detent IE, thereby not only serves to swing the C backward to its rearmost position after filth-as been swung forward therei'rom and to 5? hold the pawl c in engagement with arm C through the intervention of av ceases the teeth oftthe ratchetwheel 25 as before explained, but also tol'iold the detent in en-" gagenie'ntlwith such ratchet-teeth as well.'

\ While the-rotation of the cylinder B and the-holding of the same in itsrotated positlon 18 thus Jefiected, the limit of its rotation by the action of the pawl c to space the disj'tance between the successive lines maybe controlled in various wa' s, I proton-how ever, to control it-lrom the stop F; which is .piyoted to-the standa in the pathoi' move -ment of the pawl and is provided with three several faces f and f which'are respec-' tively beat I atdifierent distances from its axis of rotation. Asthu's constructed and arranged, this stop F may be rotated about its pivot f to bring anyone of its three several faces in,the line of n-iovement of the pawl, and thereby-allow of the swinging movement of'itscarrying arm'G from the pawl to a greater or lesser distance by a han- 'sleeve or co ar cand of the ttavdlof the dle 7, with which thestop is provided. 1

When this stop is so rotated asto bring its .90

face f in line withthe movement of the pawl,

the travel of this pawl willbe limited to thedistance of one tooth ofthe-ratchet-wheel' b and the spaces between the successive lines of type-writing will be of that width. On

the other hand, when thisstop'is'so rotated other directions about its pivot,l=so-as, to bring one or the other ofitsgf-aces into, the line of movement ef-the pawl'the distance between the suceessivb lines ef type-writing may be varied and eontrolledzasmcay be desired. .;li he forward movement eitherpawl cibeing thus limited by the stop l its-back- Thus, as will be seen, by simply rotating this stop inone art-he.

ward movement .is-alsolimited by a stoppin a which is "secured in and projects outward from the stand a? inthe inept movement of the pawl in its. backward travel and which in addition to serving es a stop to limit its backward movement also-serves to raise the pawl from engagement with the" teeth oithe ratchet-wheel whenthepa-wl approaches its backward limit of n-ioven en't, whereby to allow oi the rotation of the cylinder B in either direction by the-hand of the operator applied to the knob b or otherwise. To insure of this lifting of the pawl from the teeth of the ratchet-wheel -wh-en theltormer isrnoved backward by the action ofthespring not liable to get out of re,

specified the manner in whic a, I provide the pawlin its forward end with a notch 0 which is constructed with downwardl and inwardly inclined side walls that are a apted to engage with and ride up over the pin a when the notch c is brought in contact therewith, and thereby raise the pawl from engagement with the ratchetwheel, as shown.

With the paper-supporting cylinder B and the carriage A, upon which it'is mounted, are employed suitable feed-rolls h and a sheet metal papenrestH, in which the feedrolls are journ'aled. Of these the paperrest is mounted upon eccentrics 'i, which are formed in a shaft I, that is j ournaled in the stands a and is provided on one of its ends with a lever '11, b means of which it may be oscillated, and the rest, with the feed-rolls journaiedjherein, moved toward and away from the. cylinder B when desired to place a sheet of paper or writing operation. These devices, however, constitute no part of my present invention, and hence require no further description herein.

From the foregoing it will thus be'seen that I provide simple. and convenient means b which the rotation of the cylinder B is ed ected in the operation of returning the carriage to the required position to commence a new line and the amount of such rotation limited and-controlled, which while efficient in operation and easyof movement is at the same time cheap of construction and air. Having now describe In invention and I it is or may be carried into effect, I claim and desire to secure by Letters Patent of the United States- 1. The combination, with a aper-supporting cylinder, an actuating ratc et-wheel,

- and *at one of its ends with a shaft upon which the c linder and ratchet wheel are fixedly secured of a pawl for engaging with the teeth of the ratchetwheel, a collar or sleeve fitted to slide upon such shaft, and a bell-crank lever contacting the sleeve or collar and connected at its other'with the pawl, substantially as described. 1

2. The combination, with a aper-supporting cylinder, an actuating ratc and a shaft upon which the cylinder and ratchetwheel are fixedly secure of a pawl for engaging with the teeth of said ratchetwheel, a collar or sleeve fitted to slide upon such shaft, a bell-crank lever contacting at one of its ends with the collar or sleeve and at its otheiconnected with said spring for cooperatin with suc stantially as described.

3. The combination, with a aper-supporting cylinder, an actuating ratc et-wheel, and a shaft upon which the cylinder and ratchet-wheel arefixedly mounted and which fawl, and a parts, subot'her material-beneath the rollerand engage it therewith in the'typeing t a pawl for engaging and at the other with the care fixedly mounted,

et-wheel,

is provided with a knob fixedly secured thereto, of a pawl for engaging with the teeth of the ratchet-wheel, a collar or sleeve fitted to slide upon said shaft, a bell-crank lever contacting at one end with the sleeve or collar and connected at the other with the pawl, a button or finger-piece arranged outside of said knob, and rods passing through the knob and connecting the button or finger-piece with the collar, substantially as described.

4. The combination, with a aper-supporting cylinder, a ratchet-whee a shaft 11' on which both the cylinder and ratchetwldeel are fixedly mounted, and a pawl ior engaging with the teeth of the ratchet-wheel, of a swinging arm to which the pawl is pivoted, a collar or sleeve adapted to said shaft, a bell-crank lever contacting at one end with the collar or sleeve and connecting at its'other with the swinging arm, a knob fixedly secured to said shaft, a button or finger-piece arranged outside of such' knob, and rods assing through said knob f 1r connecte button or finger-piece with such collar or sleeve, substantially as described.

5. The combination, with a ratchet-wheel, with the teeth of such wheel, a swinging arm to the free end of which the pawl is pivoted, 'a'nd a detent for cooperating with the ratchet-wheel, of a spring connected at one end with the pawl detent, whereby not onl is the awl and the swinging arm moved ackward to the limit of their backward movemgnt, and the pawl forced downward into contact with the teeth of the ratchet-wheel, but the detent held in engagement with the ratchetteeth, substantially as described 6. The combination, With a pa er-supporting cylinder, a ratchet-wheel, an a shaft upon which the cylinder and ratchet-wheel of a pawl for engaging with the teeth of the ratchet-wheel, a swinging arm to the free end of which the pawl is: pivoted, a bell-crank lever for swinging such arm forward to rotate the cylinder, means by which the bell-crank lever may bevswung upon its pivot to operate the swinging arm; and a rotating stop by means of which the forward swinging movement of the swinging arm may be limited and the extent. of travel of the pawl thereby varied as may be re-' quired, substantially as described.

7. The combination, with a pa er-supporting cylinder, a ratchet-wheel, an a shaft upon which they are fixedly secured, of a pawl for on aging with the teeth of the ratchet-whee a swinging arm to which the pawl is pivoted, a bell-crar lglever for swingslide upon 4 mg such arm forward to rotigeithe-c linder,

mechanism by which the ll-cra lever may be swung upon its pivot to operate the gaging arm, and a stop for limiting the forw movement of the swinging arm pro- Vided witha, plurality-of faces which are dis" posed at difierent distances fromits center of I pawlprovided with a notch in its forwardi end that is' constructed with a, downwardly;

and inwardly inclined upper wall, devices by which the pawl is carried and operatefl, aj

' spring fornormally holding theflpawl initsxetracted posi ion, and catn p-pin with-which the notch in the forwardend of the ,pawlcooperates whenthe ,pewiti's retracted to both 2:5

. limit the backward movement-of such pawl and raiseit fi'omengagement with the teeth of the ratchetvnhee1, sxfibstantially as do. scl ihed T I Enwrltnoss whereof I hove eet hasnfi 2o thieZQth titers of November, 190$.

I 1 THOMAS L, Witnesses:

H. Ariammom F. SWEENY. 

